• Stainless steel body Domestic outside stem and yoke gate valves Non-health hazard application No special tools required for servicing Compact design Low pressure drop Modular construction The maximum working pressure is 175 psi (12.06 bar) The wetted surface of this product contacted by consumable water contains less than one quarter of one percent (0.25 percent) of lead by weight

This 4 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal under continuous pressure service and protection at cross-connections identified as non-health hazards and from other non toxic contaminants found at the service line entrance. This compact modular design with a single access sleeve for easy maintenance is approved for horizontal or vertical installation in accordance with the direction of the flow arrow on the assembly. It consists of a stainless steel housing and sleeve, tri-link check valves, domestic outside stem and yoke resilient seated gate valves, and test cocks.